package com.gdupt.controller;


import com.baomidou.mybatisplus.extension.activerecord.Model;
import com.gdupt.entity.SystemUser;
import com.gdupt.entity.vo.ResponseData;
import com.gdupt.entity.vo.UserRoleVo;
import com.gdupt.service.ISystemUserService;
import com.sun.deploy.nativesandbox.comm.Response;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import org.springframework.web.servlet.ModelAndView;

import javax.imageio.ImageIO;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Random;

/**
 * <p>
 * 系统用户 系统用户 前端控制器
 * </p>
 *
 * @author gdupt
 * @since 2018-11-21
 */
@RestController
@RequestMapping("/system-user")
public class SystemUserController {

    @Autowired
    private ISystemUserService iSystemUserService;

    @RequestMapping(value = "/code")
    public void Yzm(HttpSession session, HttpServletResponse resp) {
        // 验证码图片的宽度。
        int width = 60;

        // 验证码图片的高度。
        int height = 20;

        // 验证码字符个数
        int codeCount = 4;

        int x = 0;

        // 字体高度
        int fontHeight;

        int codeY;

        char[] codeSequence = {'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J',
                'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
                'X', 'Y', 'Z', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9'};
        x = width / (codeCount + 1);
        fontHeight = height - 2;
        codeY = height - 4;
        BufferedImage buffImg = new BufferedImage(width, height,
                BufferedImage.TYPE_INT_RGB);
        Graphics2D g = buffImg.createGraphics();

        // 创建一个随机数生成器类
        Random random = new Random();

        // 将图像填充为白色
        g.setColor(Color.WHITE);
        g.fillRect(0, 0, width, height);

        // 创建字体，字体的大小应该根据图片的高度来定。
        Font font = new Font("Fixedsys", Font.PLAIN, fontHeight);
        // 设置字体。
        g.setFont(font);

        // 画边框。
//        g.setColor(Color.BLACK);
//        g.drawRect(0, 0, width - 1, height - 1);

        // 随机产生160条干扰线，使图象中的认证码不易被其它程序探测到。
        g.setColor(Color.BLACK);
        for (int i = 0; i < 1; i++) {
            int x2 = random.nextInt(width);
            int y2 = random.nextInt(height);
            int xl = random.nextInt(12);
            int yl = random.nextInt(12);
            g.drawLine(x2, y2, x + xl, y2 + yl);
        }

        // randomCode用于保存随机产生的验证码，以便用户登录后进行验证。
        StringBuffer randomCode = new StringBuffer();

        int red = 0, green = 0, blue = 0;

        // 随机产生codeCount数字的验证码。
        for (int i = 0; i < codeCount; i++) {
            // 得到随机产生的验证码数字。
            String strRand = String.valueOf(codeSequence[random.nextInt(36)]);
            // 产生随机的颜色分量来构造颜色值，这样输出的每位数字的颜色值都将不同。
            red = random.nextInt(255);
            green = random.nextInt(255);
            blue = random.nextInt(255);

            // 用随机产生的颜色将验证码绘制到图像中。
            g.setColor(new Color(red, green, blue));
            g.drawString(strRand, (i + 1) * x, codeY);

            // 将产生的四个随机数组合在一起。
            randomCode.append(strRand);
        }
        // 将四位数字的验证码保存到Session中。
        session.setAttribute("validateCode", randomCode.toString());
        ServletOutputStream sos;
        try {
            sos = resp.getOutputStream();
            ImageIO.write(buffImg, "jpeg", sos);
            sos.close();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }


    @RequestMapping("/login")
    public ModelAndView login(HttpSession session, HttpServletResponse response, @RequestParam("logName") String logName, @RequestParam("logPwd") String logPwd, @RequestParam("code") String lcode, org.springframework.ui.Model model) {
        String code = (String) session.getAttribute("validateCode");
        ModelAndView modelAndView = null;
        if (lcode.toUpperCase().equals(code)) {
            UserRoleVo userInfo = iSystemUserService.login(logName, logPwd);
            if (userInfo != null) {
                session.setAttribute("userInfo",userInfo);
                modelAndView = new ModelAndView("redirect:/views/index.jsp");
                return modelAndView;
            }else{
                modelAndView = new ModelAndView("../login");
                modelAndView.addObject("msg","账号或密码错误");
            }
        }else
        {
            modelAndView = new ModelAndView("../login");
            modelAndView.addObject("msg","验证码错误");
        }

        return modelAndView;
    }

    @RequestMapping("/search")
    public ResponseData search(HttpServletRequest request){
        int userId = (int)request.getSession().getAttribute("userId");
        UserRoleVo userRoleVo = iSystemUserService.search(userId);
        return  ResponseData.okDatas(userRoleVo);
    }
    @PostMapping("/editPwd")
    public ResponseData editPwd(HttpServletRequest request,SystemUser systemUser){
        Boolean flg = iSystemUserService.editPwd(systemUser);
        if(flg){
            return ResponseData.okMsg("修改成功");
        }
        return ResponseData.okMsg("修改失败");
    }
    @RequestMapping("/logOut")
   public void ligOut(HttpSession session,HttpServletResponse response){
        session.setAttribute("logName","");
       try {
           response.sendRedirect("/login.jsp");
       } catch (IOException e) {
           e.printStackTrace();
       }
   }
}
